code: def callback(self, node, status, result=None):
      self.statuses.append((node.name, status))
  
file_path: nipype/nipype/pipeline/plugins/tests/test_callback.py
imports: from time import sleep
  import pytest
  import nipype.interfaces.utility
  import nipype.pipeline.engine
label_desc: Use image node_id 2 for calling the Status obj's underlying member method code with example usage: obj.callback(node, status, result) without return types